Hypothetical Preamp Question

[eleanor296]

So... let's assume I'm crazy, and I was actually thinking at work today.
Well, what if I had the ridiculous idea to, say, put a Dumble 2-channel preamp and a SLO two-channel preamp in the same housing...
apart from having to compromise on voltages, finding a power amp design that both preamps would like, etc.
how would I do the switching logic?  It's two separate preamps after all, and both have two channels....
hmmm....
I bet there's a suitable solution at Geofex, just can't find it right now.

On the other hand, thinking about it... that idea isn't so crazy.
I bet that'd be really cool to have in a 2U rack chassis...